blobstore

I have already watched "Writing Files to the Blobstore (Experimental)" in the google app engine page. This is what I have : // Get a file service FileService fileService = FileServiceFactory.getFileService(); // Create a new Blob file with mime-type "text/plain" AppEngineFile file = fileService.createNewBlobFile("text/plain"); // Open a channel to write to it boolean lock = false; FileWriteChannel writeChannel = fileService.openWriteChannel(file, lock); // Different standard Java ways of writing to the channel // are possible. Here we use a PrintWriter: **PrintWriter** out = new PrintWriter

I'm using the python api and have created a few orphaned blobs during testing. Because of a bug in the dashboard, I can't currently delete these, and in any case going forward I would like to be able to do this programmatically since it will be unfeasible to do it manually once the number of entities goes up. If your BlobReferenceProperty field is indexed, then yes, it's quite possible. The BlobInfo class provides the same set of fields as a regular model, so you can do it something like this: blobs = BlobInfo.all().fetch(500) for blob in blobs: if not MyModel.all().filter("blob_ref =", blob

In my Android application, I want to upload image to the Blobstore, then retrieve an Upload url and the image's Blobkey, so I can store the Blobkey in the DataStore. I've tried this code, but my image isn't uploading: Servlet (Return upload url) BlobstoreService blobstoreService = BlobstoreServiceFactory .getBlobstoreService(); public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException { UploadOptions uploadOptions = UploadOptions.Builder .withGoogleStorageBucketName("photobucket11") .maxUploadSizeBytes(1048576); String blobUploadUrl = blobstoreService

We have our application hosted on Google app engine for Java and we have a requirement where we want to store the blood donor appreciation certificates ( html files) somewhere. So, we can use either Google Blobstore or Google Cloud Storage. I know both of these solutions are feasible to do using gae for Java However, the problem for us is to decide which one to use. What are the pros and cons of these two approaches? We are a non profit and cannot pay a lot. Svetlin Nakov Better to use the Blobstore. The service has 5 GB of space for free (as of March 2012). The cloud storage is a paid service

I am developing an app-engine connected android project using the eclipse plugin. One aspect of the app is to allow user Alpha to send pictures to user Bravo. To do that I have the following setup: User Alpha posting: send image to my app engine server through endpoints server stores image in blob store server stores blobkey in datastore User Bravo getting: server gets blobkey from datastore server gets image using blob key server sends image to android app using endpoints This setup takes upward of two (2) minutes from when my android app sends an image to when I can see it in the blob sore.